LX8554-33CDD集成電路（IC）的線性+開關穩(wěn)壓器規(guī)格書PDF中文資料

LX8554-33CDD屬于集成電路（IC）的線性+開關穩(wěn)壓器。由美高森美公司制造生產的LX8554-33CDD穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

DESCRIPTION

The LX8554 series ICs are very low dropout three-terminal positive regulators with 5A rated output current. This product family is ideally suited for Pentium? Processor and Power PCTM applications requiring fast transient response. The LX8554 is guaranteed to have a dropout voltage under 1V at 5A load, making it ideal to provide well-regulated outputs of 2.5V to 3.6V with input supply as low as 4.75V. Fixed versions are also available and are specified in the Available Options table below.

KEY FEATURES

■ THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT

■ GUARANTEED ≤ 1V HEADROOM AT 5A

■ OUTPUT CURRENT OF 5A

□ FAST TRANSIENT RESPONSE

□ 1 VOLTAGE REFERENCE INITIAL ACCURACY

□ OUTPUT SHORT-CIRCUIT PROTECTION

□ BUILT-IN THERMAL SHUTDOWN

■ EVALUATION BOARD AVAILABLE: REQUEST LXE9001 EVALUATION KIT

APPLICATIONS

■ PENTIUM PROCESSOR SUPPLIES

■ POWER PC SUPPLIES

■ MICROPROCESSOR SUPPLIES

■ LOW VOLTAGE LOGIC SUPPLIES

■ BATTERY POWERED CIRCUIT

■ POST REGULATOR FOR SWITCHING SUPPLY